Home / 104,831.55-144,504.18-87,805.76

Finding the Fourth Proportional to 104,831.55, 144,504.18 and 87,805.76

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Solution

The fourth proportional to 104,831.55, 144,504.18 and 87,805.76 is: 121,035.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,831.55 : 144,504.18 = 87,805.76 : x
  2. Step 2: Convert to fraction form
    104,831.55/144,504.18 = 87,805.76/x
  3. Step 3: Cross multiply
    104,831.55x = 144,504.18 × 87,805.76
  4. Step 4: Simplify right side
    104,831.55x = 12,688,298,625.56
  5. Step 5: Solve for x
    x = 12,688,298,625.56/104,831.55
  6. Step 6: Final answer
    x = 121,035.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.